Illuminated clock



(No Model.) 3 Sheets-Sheet 1.

' J. M. CRAWFORD.

ILLUMINATED CLOCK.

No. 317,096. Patented May 5, 1885.

7 (No Model.) 3 SheetsSheet 2.

J. M. CRAWFORD.

ILLUMINATED CLOCK. No. 317,096. Patented May 5; 1885.

(No Model.) f 3 Sheets-Sheet 3.

J. M. CRAWFORD.

ILLUMINATED CLOCK.

No. 317,096. Patented May 5, 1885.

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75297165568. I Zn/wmtaz' Z fl Q flztyf UNITED STATES PAENT anion.

JOHN M. CRAWFORD, OF PHILADELPHIA, PENNSYLVANIA.

ILLUMINATED CLGCK.

SPECIFICATION forming part of Letters Patent No. 317,096, dated May 5,1885.

Application filcd April 17, 1884.

To all whom it. may concern:

Be it known that I, JOHN M. CRAWFORD, a citizen of the United States, residing at Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented certain new and useful Improvements in Illuminated Clocks; and I do hereby declare the following to be a full, clear, and exact description of the invention, reference being had to the accompanying drawings, which form part of this specification, in which- Figure 1 is area-r elevation of clock. Fig. 2 is a front elevation of clock. Fig. 3 is a vertical section of valve. Fig. 4c is a side elevation of clock. Figs. 5, 6, and 7 are detail views. 1

My invention has relation to illuminated clocksthat is, clocks having: attached or appurtenent thereto suitable gas fixtures or burners, by means of which a light may be shown at definite intervals, and the dial illumined so that time may be read during the night or periods of darkness.

In an illuminating clock for which I obtained Letters Patent of the United States dated July 17, 1883, No. 281,465, I have shown an arrangement of devices wherein the the gascock is turned to admit a full head of gas to the burner by means of a tappet on the main arbor of the clock, and reversed so as to reduce the flame to a mere jet or glimmer by means of a suitable spring.

My present invention contemplates the substitution for the spring of a weighted cock, which will be more durable and more exact and reliable in its action, and in the additional provision of means whereby, first, the size of the jet or glimmer or initial fiow of gas may be regulated to any desired extent; second, the fiame may be raised to a full pitch and so maintained independently of the devices for causing a full flow of gas at definite intervals; third, the flame may be raised and maintained at a certain predetermined period, while previously the devices for temporary illumination have been active and effective.

My invention accordingly consists in the novel construction and combination of devices having in view the objects stated, and in the special construction, arrangement, and combination of details, as hereinafter specified.

(No model.)

Referring to the accompanying drawings, which illustrate my invention, A designates a clock of any suitable construction, but preferably portable.

O designates a gas-supply tube provided with the mouth-piece D, to be placed over the burner from which the supply-pipe is fed, and E designates a branch or continuation of said supply-tube arranged vertically at the back of the clock-case, and held in position by the collar E and coupling-socket G, attached to said case. From the socket G a tube, g, extends forward underneath the clock-case, and has swiveled to it near its outer end curved jet-tube II, terminating in a burner, h. The tube H may be swung into position in front of or in oblique relation to the dial, or it may be turned completely to one side thereof.

The pipe E difi'ers from the corresponding pipe in my patent referred to in being of metal, and therefore more reliable, serviceable, and durable than the rubber or flexible tube of said patent. The tube E is in two sections, coupled by a valve chest or box, F, in which is fitted the gas-valvef. The stem of the lat ter does not project or pass through the valvechest, as in ordinary gas-cocks, but is grooved at f and held in position by a set-screw, the end of which enters the groove 1, allowing the valve to turn easily and preventing the latter from becoming leaky and too tight or too loose in its seat.

I designates a weighted lever upon the outer end of the valve-stem f, arranged so that when depending in its normal position it will keep the valve closed or partly closed, and shut off or reduce the supply of gas to the burner. An adjustable stop-lever or regulator, I, swiveled or pivoted upon a rod, K, is employed to limit the drop of the weighted lever I, and thus control the quantity of gas supplied to the burner and the consequent size of the jet. A set-screw, L, secures the stop-lever I to its rod K, and allows the latter to be adjusted to different angles. The stop-lever I has a tailpiece, I", in which is fitted an adj Listing-screw, W, by means of which the play or angle of in clination of said stop-lever may be regulated, the inner end of said screw abutting against the coupling-socket G. The rod K has its bearings in brackets k, one of which is secured mechanism.

to the coupling G and the other to the clock- I case, and, being continued forward under the clock-case, terminates at the front of the clock in a crank, g, by which the rod may be rocked in said bearings, so as to turn the gas on and off by hand, the weighted valve being in such case moved by contact of the stop-lever.

The gas-cock is turned to let on the full flow of gas and raise the illuminating-flame by the radial arms at on the minute-hand arbor N of the clock, said arms coming in contact successively with the short arm of the weighted lever I on the valve-stem f. The flow of gas is maintained while one of the arms is in contact with and passing the upper end of the weighted lever, but when the latter is passed it falls against the stop-lever I and reduces the flow, so as to bring the flame to a low jet or glimmer. The arms a have hinged or pivoted terminals,which may be turned out of the way of the weighted lever, so that when the intermittent raising and lowering of the flame is not desired no action of the gas-cock will result from the movement of the clock-works.

For use in connection with alarm-clocks I have provided an expedient for raising the flame to its full power at any predetermined time governed by the setting of the alarm L designates the arbor of the alarm on or by which the alarm-movement is wound up. To the outer end of said arbor a thumb-nut, M, having wings or radial arms on, is attached and turns with said arbor L when the alarm mechanism is wound up and set free and operating. The thumb-nut has a lug, m, on one of the wings, the other wing being unprovided with such lug, thus leaving a space, on, between it and the back of the clock-case. P designates a V-shaped lever, journaled on the main arbor or winding-post O of the clock. The upper arm of this lever extends transversely of the axis of the arbor L and adjacent thereto, normally occupying the space m while the lower arm terminates above and nearly in contact with the long arm of the stop-lever I.

When the alarm mechanism is in action, the rotation of the knob or thumb-nut M brings the lug m in contact with the upper arm of the lever 1?, moving the same laterally or on its pivot O, and causing the end of the lower arm to impinge upon and move the stop-lever I. This movement lifts the weighted lever I and turns the gas-valve, raising the illuminating-flame to its full pitch. The lever P,

when the thumb-piece ceases its rotary motion, resumes its normal position in the space m and the flame stands until turned down or out by hand.

lVhat I claim as my invention is as follows:

1. The combination, with, a clock having attached thereto suitable gas-supply and illuminating appliances comprising the radial arms a on the arbor N, the pipe E, cock or valve f, and burner-section H, of the weighted lever I, substantially as described.

2. In a clock having gas-burning devices for illuminating the dial, the rigid metallic branch pipe E, attached to the back of the clock, and provided with a cook or valve for raising and lowering the flame at intervals, having a stem, f, passing only through one side of the valve box or chest, said stem having an annular groove which receives a setscrew, whereby said stem isheld in position, substantially as shown and described.

3. In an illuminated clock having gas-supply and burning attachments, a weighted gasvalve arranged to be opened by the clockmovement and adapted to fall by gravity, so as to reduce or cut oil the flow of gas, sub stantially as set forth.

4. In an illuminated clock having gas-supply and burning appliances, an automaticallyclosing gas-cock, in combination with an adjustable stop-lever constructed, arranged, and adapted to limit the play of said cock and regulate or control the size of the jet or flame, substantially as set forth.

5. In an alarm-clock provided with gassupply and burning appliances, the combina tion, with the alarm mechanism, the gas-sup ply pipe, and a cock or valve which normally maintains the flame as a jet or glimmer, of a lever actuated by the alarm mechanism, and intermediate devices whereby at a predetermined period the flame may be raised automatically, substantially as described.

(5. I11 combination with clock-arbor O, the lever I j ournaled thereon and forming a medium for turning 011 the gas by the action of the alarm mechanism of the clock, substantially as shown and described.

7. The combination, with the alarm-arbor L, of thumbnut M for moving the lover I, whereby the gas-valve is actuated, substantially as shown and described.

8. In combination with the alarm-arbor L and lever P, the thumb-nut M, having wings an, one only of which is provided with a lug, m, substantially as shown and described.

In testimony that I claim the foregoing I have hereunto set my hand this 16th day of April, 1884.

JOHN M. ORAJVFORD.

Witnesses:

W. H. GRAEFF, War. H. POWELL.

ICC

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